Pump coupling



mac. 25, 1923. 11,478,453

J. J. OBRIEN PUMP COUPLING Filed Jul 25, 1922 Patented Dec. 25, 1923.

units stares JOHN J.'OBBIE1\T, OF GOGGON, IOWA.

rural COUPLING.

Application filed July 25, 1922. Serial No. 577,383.

To all whom 2'25 may concern:

Be it known that I, JoHN J. OBnmu, a citizen of the United States, residingat Coggon, in the county of Linn and State of Iowa, have invented certain new and useful Improvements in Pump Couplings, of which the following is a specification.

This invention relates to an improved pump coupling and seeks, as one of its principal objects, to provide a device of this character whereby the pump rod of a wind mill may be readily connected to or disconnected from the piston rod of a pump so that, when desired, the pump may be operated by hand or by power independent of the wind mill.

The invention has as a further objectto provide a coupling which will eliminate the necessity for the removal of any bolts connecting the pump rod of the wind mill with the pump piston, as are now commonly employed.

And the invention has as a still further object to provide a coupling employing a single coupling pin connecting the pump rod of the wind mill and the pump piston and wherein the pump rod will be held against angular movement with respect to the piston.

Other and incidental objects will appear hereinafter.

In the drawing:

Figure 1 is a perspective View of my improved coupling showing the device in connection with a conventional wind mill pump rod and pump..

Figure 2 is an enlarged perspective view of the device showing the keeper open, and

Figure 3 is a vertical sectional view through the coupling.

Referring now more particularly to the drawing, I have, for convenience, shown my improved coupling in connection with a conventional pump 10 having a piston 11 with which is detachably engaged a handle 12 so that the pump may be manually operated while, when desired, the handle may be detached from the piston and the pump operated by a wind mill. A conventional wind mill pump rod is indicated at 13.

In carrying the invention into effect, I employ a channel shaped body plate 14: which is formed to fit the pump rod 13 of the wind mill and is provided at one side with an upstanding longitudinally directed flange 15. Extending through the body plate are spaced bolts 16 and 17 rigidly connecting said plate. with the pump rod, a spacer 18 being arranged to surround the bolt 16 at the forward side of the body plate. Pivoted upon the body plate is a keeper including a keeper bar 19 from the outer side edge of which extends a longitudinally directed upstanding flange 20 and projecting from the lower end of said'flange to overhang the keeper bar in parallel spaced relation is a front plate 21. As brought out in Figure 3, the bolt 17 is engaged through the upper end portion of the keeper bar for vswingingly supportin the keeper and formed in said bar at its lnner edge is a notch 22 to accommodate the spacer 18 upon the bolt 16. As will be observed, the keeper is formed to accommodate the piston rod 11 lying within the keeper between the flange 15 of the body plate and the flange 20 of the keeper and formed on the keeper bar 16 at its lower end is a rib 23 spacing the piston from the keeper bar to overlie the bolt 16. Freely en-' gaged through the plate 21 of the keeper, through the piston 11, the keeper bar, and through the lower end of the body plate 14 is a coupling pin 24 and secured upon the flange 15 of the body plate, as by a suitable length of chain, is a key 25 removably engaged through the inner end of the pin for locking the pin against accidental displacement. Thus, as will be seen, the coupling pin will serve to rigidly connect the piston with the pump rod 13 and will also look the keeper closed. An eflicient connection between the piston and said rod is thus pro-- vided and in this regard it will be observed that the upper wall of the notch 22 in the keeper bar is formed to coact with the spacer 18 upon the bolt 16 so that both of the bolts 16 and 17 will serve to sustain end thrust upon the keeper. Furthermore, it is to be noted that the flange 15 of the body plate and the flange 20 of the keeper will coact with the piston for limiting the pump rod 13 against angular movement with respect to the piston. To detach the rod 13 from the piston, the coupling pin 24 is removed when, as shown in Figure 2, the keeper may be swung to one side for releasing the piston. Thus, when desired, the pump rod and piston may be readily uncoupled so as to permit independent operation of the piston.

Having thus described the invention, what is claimed as new is:

1. The combination with a power operated pump rod, and a pump piston rod, of a coupling mounted upon one of said rods and including a pivoted keeper to coact with the other of the rods, and a coupling pin engaged through the latter rod locking the keeper closed.

2. The combination with a power operated pump rod, and a pump piston, of a coupling mounted upon said rod and including a body plate, a keeper swingingly mounted upon the body plate accommodating the piston between the keeper and body plate looking said rod against a'ngularmovement with respect to the piston, and a coupling pin engaged through the piston locking the keeper closed.

.3. A pump coupling including a body plate for attachment to an actuating element, a keeper swingingly mounted upon the plate adapted to accommodate a pump piston rod between the keeper and plate, and means for locking the keeper'closed engagedthrough the rod. I

4. A pump coupling including a body to an actuating element, a keeper pivoted upon one of said means and operatively engageable when closed with the other of said means to be held against endwise thrust by both of said means, and means for locking the keeper closed engaged through a pump piston rod confined by the keeper. 7

5; A pump coupling including a body plate, spaced bolts extending through the plate for connecting the plate to an actuating element, a keeper pivotally mounted upon one of said bolts and notched tooperatively coact with the other of said bolts when the keeper is closed sustained by both of said bolts against endwise thrust, and means for locking the keeperclosed engaged through a pump piston rod confined by the keeper.

In testimony whereof I affix my signature.

' JOHN J. OBRIEN. [L.S.] 

